Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
  • A61B5/25—Bioelectric electrodes therefor
  • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
  • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
  • A61B5/282—Holders for multiple electrodes
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
  • A61B5/316—Modalities, i.e. specific diagnostic methods
  • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
  • A61B5/339—Displays specially adapted therefor
  • A61B5/341—Vectorcardiography [VCG]

Definitions

• the potential is measured from many points on the body surface near the heart and knees, and the body surface potential diagram at the time when the potential determined by S1I is calculated. Background of the Shinda Denki that displays
• electrocardiograph The most commonly used electrocardiograph currently measures the changes in the electrical potential at six points on the chest, and displays the time on the horizontal axis and the electrical potential on the vertical axis. Discovered a heart abnormality. However, with this type of electrocardiograph, it is always difficult to clearly examine all electrocardiographic phenomena. In recent years, as the most advanced electrocardiograph, electrodes of, for example, 80 to 200 points have been arranged on the body surface close to the heart, and cardiac potentials have been collected from all of them. Electrocardiographs have been developed to determine electrical phenomena.
• the electrocardiograph creates a body surface electrogram near the heart at a certain time.
• the height of the body surface potential is indicated by an equipotential ⁇ , and the potential distribution on the surface is observed. Therefore, the potential of each electrode at a certain time is temporarily stored in memory. Record
• the computer calculates the equipotential point based on the potential of each electrode, and calculates the equipotential ⁇ , for example, tens of micro-hole pitches on an XY blotter. Or a monitor television.
• This electrocardiograph displays multiple potential distributions over a certain period of time, and sees changes in the body surface electrogram to expand the brass or minus area on the heart surface and enrollment status. , And changes in the potential distribution are obvious at a glance, and the electrocardiographic phenomenon is clearly displayed.
• each cell is stable and positive In order to protrude from the position, all electrodes should be pressed against the body surface with a strong pressing force.
• an electrocardiograph that detects the voltage of each meter ( ⁇ ) has a considerably large number of electrodes, for example, if the pressing force of one electrode is 500 g and the number of electrodes is 100 pairs, However, as a whole, the chest is pressed with a strong force of 50 kg, which is inevitable to give a strong feeling of pressure to the patient, which is extremely unsuitable for patients with weak physical strength.
• the electrocardiograph of the present invention displays an equipotential map of the body surface at a certain time
• the displayed equipotential map indicates whether the heart is defective or the connection state of the electrodes. It is more difficult to determine whether it is unstable than with conventional electrocardiographs. Therefore, in order to increase the measurement accuracy, all electrodes must always be in stable electrical contact with the body surface.
• the present invention provides an electrocardiograph capable of stably, reliably and accurately escaping a potential from a number of points on a body surface, and capable of measuring the electrocardiographic phenomena of many patients of different forms in an extremely short time.
• the purpose is to:
• Another object of the present invention is to provide an electrocardiograph that can accurately display a potential diagram of the body surface E without any one of the needle electrodes completely contacting the body surface. .
• the present invention provides an electrocardiograph that can reduce the surface pressure of one needle electrode and can display a surface potential distribution map without causing the patient to feel strong pain or discomfort. The goal is to do it.
• a plurality of needle electrodes arranged close to each other are electrically connected in parallel to form one electrode group, the plurality of electrode groups are provided, and the interval between the electrode groups is one electrode group.
• the needle electrodes are formed to be sufficiently longer than the interval between the needle electrodes.
• each of the needle electrodes is elastically and independently directed toward the body surface by 3 ⁇ 4 ⁇ .
• the needle electrodes are arranged in parallel or almost parallel, and one electrode group composed of multiple needle electrodes detects a local potential on the body surface. As long as the needle electrode is completely in contact with the body surface, the contact state of the needle electrode of Shinya is bad, and the body surface potential is accurately detected. Simple explanation of the drawing
• Fig. 1 shows the right side of the electric potential on the surface of the body near the stunning
• Fig. 2 shows an example of the present invention.
• Fig. 3 to Fig. 5 are perspective views, new views, bottom views, Fig. 6, Fig. 8, Fig. 9
• Fig. 7 is a cross-sectional view showing the mounting position of the electrode group
• Fig. 7 is a plan view of the school material
• Fig. 10 is a connection diagram of the FET connected to the electrode
• Fig. 11 is a cross-sectional view showing the mounting state of the electrode. It is. BEST MODE FOR CARRYING OUT THE INVENTION
• the electrode 1 is composed of a main salary 6 of 10 holidays, and a main body 6 and eight detailed details 5 attached to the main body.
• Each of the main bodies 6 is connected by a movable member which is a string-like rubber-like elastic body, and the outermost main body 6 is connected to a winding band 8 of a stop ⁇ .
• the adhesive tape S is sewn on the release of the band 8.
• needle electrodes 5 ⁇ are juxtaposed in each body 6 so as to be freely inserted.
• the main body 6 is provided with a box-shaped case 10 having a lower opening, and two supply members 11 and 12.
• the two needles 1 1 and 1 2 pass through the needle electrode 5 N so that the needle electrode 5 N can freely enter and exit, and the coil through which the needle electrode 5 is inserted is inserted between the two electrodes 11 and 12.
• Spring 13 installed o
• the coil spring 13 is an ⁇ panel.
• the lower part is printed on the upper surface of the plate material by penetrating the upper member 11 with the lower part in the middle of the needle 5N and the upper part through the upper part 11.
• a conductive layer 14 such as a copper film.
• the ⁇ -body 6 shown in Fig. 5 and Fig. 7 has an electrode group 5 of 8 mm on one:?: ⁇ : 6, and one set of electric flies ⁇ 5 consists of four needles g 5 N .
• the four needle electrodes 5 N are very close to each other between the electrodes 5, for example, between the electrodes and the electrode D. Installed, 4 needles ⁇ 5 N Inserted coil spring 1 3 Are connected by a conductive layer 14 on the upper surface of the material. With this structure, even if one of the needle electrodes 5 N cannot contact the body surface, if any one of the needle electrodes 5 N contacts the body surface, the potential of the body surface can be detected with that needle electrode. You.
• one needle electrode 5N when one set of electrode groups has 4 ⁇ needle electrodes 5N, one needle electrode 5N generates 1 ⁇ contact 1 $ failure in 100 seconds. If so, the probability that all of the four needle electrodes 5N in one set will cause a connection failure is almost 1 second at 10 ° seconds, which is almost zero.
• the interval of the needle electrode is 5 mm! 115 ⁇ , so that the coil spring 13 that pushes out the needle electrode 5 ⁇ is used to transmit the detected potential of the needle electrode 5 ⁇ to the drawer 515.
• an ideal structure is obtained in that each needle electrode 5 mm freely moves up and down without being affected by each other.
• a bamboo shoot 16 is inserted into a through hole through which a needle electrode 5 is provided.
• the cylindrical body 16 has a small frictional resistance with the needle electrode 5, which is a metal such as stainless steel, copper, aluminum, or a conductive alloy.
• the needle electrode 5 is a metal such as stainless steel, copper, aluminum, or a conductive alloy.
• a metal cylinder or a cylinder having a smooth inner surface and low frictional resistance is used. As shown in FIG. 6, the cylindrical body 16 protrudes slightly downward from the lower end of the metal member 11.
• the upper end of the coil spring 13 is inserted. According to this structure, the coil spring 13 contacts the needle electrode 5 when the needle electrode 5 N is pushed into the odor and the coil spring 13 contacts the needle. ⁇ 3 ⁇ 4 It is possible to prevent the movement of 5 N from being stopped, and the harness always goes in and out smoothly. If the lower end of the coil spring 13 is clear, the needle indigo wire 5 shown in the coil spring 13 is fixed by soldering and becomes thicker. 7 is prevented from coming off by contacting the through hole ⁇ 7 of the lower plate 1 2 3
• the upper plate 11 is made of a conductive material such as a copper film as shown in Fig. 7. Layers 14 are printed in print and this conductive layer
• the drawer ⁇ 1 5 is connected to one end of 1 4 c
• the body shown in Fig. 8 has a coil spring 13 disposed above the needle electrode above the needle electrode, and the coil spring is attached to the coil spring.
• the coil spring is a pull panel, the upper end of which is connected to the upper end of the needle electrode, and the lower ⁇ is welded to the conductive layer printed on the surface of the plate and printed on the conductive layer.
• Drawer is connected
• the body shown in Fig. 9 has coil springs above and below the upper plate. According to this structure, one or both of the coil springs at the top and bottom can be read on the conductive layer of the village, and a lead wire can be connected to the conductive layer. In this case, one of the coil springs is very soft, and the length of the coil is extremely small, and the elastic modulus, which is a necessary force, is extremely small. phrases to be good c
• an inextensible knob band, a flexible command g ⁇ , or the like can be used.
• the leads 15 connected to the electrodes are assembled into one shield wire 26 and connected to the arithmetic circuit 2 by the shield wire 26.
• the potential repelled by the electrodes is generally ⁇ : appropriate, and the elimination of external difficult sounds must be sufficiently considered.
• the SZN ratio can be improved by shielding each block vertically.
• amplifying means for amplifying the signal detected by the electrode, or FET if it is clean, in the block are preferable to incorporate amplifying means for amplifying the signal detected by the electrode, or FET if it is clean, in the block.
• connection between the FET 18 and the electrode group 5 does not require a built-in power supply in each body, and a load resistor R of T 18 is built in the arithmetic circuit. I just need. Also, conveniently,
• a main unit with eight electrode groups has a built-in T of 8 fg.
• the body surface detection potential can be transmitted to the arithmetic circuit 2 with eight output signal drawers 15 and one ground wire.
• FIG. 11 shows a state in which the electrodes are attached to the human body. That is, each body 6 is placed on the body surface close to the heart, and ⁇ ⁇ of the wrapped band 8 is different from each other with an adhesive tape, and ⁇ 6 o needle electrode 5 N is pressed at a constant pressure on the body surface. Contact.
• Fig. 11 (shown The outside of the body 6 may be further tightened with an elastic band 19 so that the electrode is pressed against the surface of the body with a stronger force to make contact with the body surface for 1 $.
• the arithmetic circuit 2 performs an arithmetic process on the electric signal sent from the electrode according to a predetermined method, calculates an equipotential position at regular time intervals, and outputs the output signal to the XY block 4 and the monitor. And send them to the receiver 4 'to write an equipotential ⁇ so that a potential distribution map on the body surface is created.
• the electrocardiograph of the present invention is used as an apparatus for detecting a heart disease and for early detection of a heart disease caused by another disease.
• the measurement time of one person is short, and the operation is simple. It is ideal for mass examination of the heart because it has a small amount of disposable material such as an adhesive tape electrode and can be used for IS at the time of S3 measurement.

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• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Cardiology (AREA)
• Heart & Thoracic Surgery (AREA)
• Molecular Biology (AREA)
• Pathology (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Physics & Mathematics (AREA)
• Medical Informatics (AREA)
• Biophysics (AREA)
• Surgery (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
• Measuring And Recording Apparatus For Diagnosis (AREA)

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Publications (1)

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ID=16207584

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Country Status (6)

Cited By (1)

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• 1980
  • 1980-12-31 JP JP55187524A patent/JPS57112846A/ja active Granted
• 1982
  • 1982-01-04 DE DE8282900225T patent/DE3279706D1/de not_active Expired
  • 1982-01-04 WO PCT/JP1982/000001 patent/WO1982002333A1/ja active IP Right Grant
  • 1982-01-04 AU AU80024/82A patent/AU556182B2/en not_active Expired
  • 1982-01-04 EP EP82900225A patent/EP0068032B1/en not_active Expired
  • 1982-01-04 US US06/405,955 patent/US4517983A/en not_active Expired - Lifetime

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